Autometers alliance ltd, an iso 9001 certified company is engaged in designing, manufacturing, supplying, installing & servicing various measuring, switchgear and power conversion equipments for railways and uninterruptible power supply [ups] for industrial applications. Autometers alliance ltd has developed 25 kva under slung igbt-based static converter. The converter employs state of the art dsp control and feeds the stabilized power to air conditioning and other loads of the railway passenger coaches. The product has been built in accordance with iec 60571, iec 61287-1 and iec 60310. The following are its distinct feature:
1. under carriage mounting of converter saves space for 2 extra berths inside the coach
2. under carriage mounting prevents noise pollution
3. sturdy ms sheet fabricated enclosure, with special protective surface treatment
4. ip 65 protection makes the enclosure impervious to water, even in flood situations.
5. converter does not require any moving parts for cooling as it is naturally cooled
6. vacuum pressure impregnation using `h-class` resins for filter inductors
7. accessible through side panels and affords easy maintenance.
8. fault logging facility for ease of maintenance.
9. data transfer through serial communication between onboard display and under slung converter.
10. control and monitoring through onboard interactive vfd panel.
11. pc interface facility for downloading of logged data and online monitoring.
Applications
1. converts single phase ac available from the locomotive transformer into 3-phase 415v, 50 hz supply.
2. feeds 3-phase power to the loads, viz., air conditioning, lights, ventilation, pantry, and the like of the passenger coaches.
